Fichter, L. S., & Farmer, G. T. (1991). Earth materials and earth processes: An introduction (3rd ed.). Macmillan.
芝加哥风格引文Fichter, Lynn S., 与 G. Thomas Farmer. Earth Materials and Earth Processes: An Introduction. 3rd ed. New York: Macmillan, 1991.
MLA引文Fichter, Lynn S., 与 G. Thomas Farmer. Earth Materials and Earth Processes: An Introduction. 3rd ed. Macmillan, 1991.
警告：这些引文格式不一定是100％准确.